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User’s Guide
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e-mail: info@omega.com
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M-4292/1006
PCL340 Series
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® OMEGAnet Online Service Internet e-mail www.omega.com info@omega.com Servicing North America: USA: One Omega Drive, Box 4047 ISO 9001 Certified Stamford CT 06907-0047 Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1, Canada Tel: (514) 856-6928 FAX: (514) 856-6886 e-mail: info@omega.ca For immediate technical or application assistance: ® USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA ® Customer Service: 1-800-622-2378 / 1-8
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1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1 Contacting OMEGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.2 Standard Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.3 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 2. Calibrator Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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1. Introduction The OMEGA PCL340 Series is designed to be a simple to use yet very versatile pressure calibrator. Its internal pressure sensor combined with inputs for mA, voltage and switch contacts allow the PCL340 Series to calibrate a variety of pressure devices. An external pressure module option allows an even wider range of pressure calibration options including absolute and differential. 1.1 Customer Service Omega Engineering One Omega Drive Box 4047 Stamford, CT 06907-0047 Tel: (203) 35
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Symbol Description Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Off On The following definitions apply to the terms “Warning” and “Caution”. • “Warning” identifies conditions and actions that may pose hazards to the user. • “Caution” identifies conditions and actions that may damage the instrument being used. Use the calibrator only as specified in this manual, otherwise injury and damage to the calibrator may occur. War
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• Select the proper function and range for your measurement. • Make sure the battery cover is closed and latched before you operate the calibrator. • Remove test leads from the calibrator before you open the battery door. • Inspect the test leads for damaged insulation or exposed metal. Check test leads continuity. Replace damaged test leads before you use the calibrator. • When using the probes, keep your fingers away from the probe contacts. Keep your fingers behind the finger guards on the pr
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2. Calibrator Interface Figure 1 shows the location of the process measurement inputs, while table 1 describes their use. Side View Figure 1 Process Measurement Inputs Table 1 Process Measurement Inputs No. Name Description 1, 2 Input Terminals These terminals are used to measure current, voltage and a contact closure for switch test. 3 P1 Pressure Port This is the connection for the internal sensor P1 4 Serial Interface This is used to interface to optional external modules or optio
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Figure 2 Keypad Table 2 Key Functions No. Name Description 1 Function Keys These keys are used in various ways, primarily to configure the calibrator 2 ON/OFF Key This key is used to turn the calibrator on and off 3 ZERO Key This key is used to zero pressure measurements 4 Backlight Key This key is used to turn the backlight on and off 2.1 Calibrator Display The Calibrator Display consists of two regions: The menu bar (located along the bottom of the screen) is used to access a menu
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Figure 3 Display Table 3 Display Functions No. Name Description 1 Primary Parameters Indicates what is being measured. 2 Span Indicator Indicates the percent of the 4 to 20 mA span. (For mA and mA Loop functions only) 3 Pressure Units Indicates one of 17 pressure units available for display. 4 Units Indicates the unit of measure for the display. 2.1.1 Main Menu Functionality There are three options on the Main Menu, CONFIG, {current display} and MORE. The Main Menu is home for th
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With a single display the following modes are available: P[1] = Pressure on left side sensor. [EXT] = Pressure with external pressure module. P[1] ST = Switch Test with left side sensor. [EXT] ST = Switch Test with external pressure module. mA = Milliamps measure without loop power. mA LOOP = Milliamps measure with loop power. VOLTS = Voltage Measure. The following table shows which functions are available concurrently. An X in a column indicates that the mode in the current display will not be
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Figure 4 Menu Map 8
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2.2 Using the Backlight The backlight is controlled by the dedicated backlight key. It toggles on and off when the key is pressed; this is one of the few functions that cannot be controlled by the serial interface. 2.3 Using the Zero Function When the ZERO_KEY is pressed, the calibrator will zero the current display if a pressure mode is selected, and the pressure is within the zero limit. 2.3.1 Internal Sensor and Pressure Module (non-absolute) When a sensor or module is selected on the curren
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2.4.1 Setting the Contrast From the Contrast Main Menu choose the CONTRAST option to access the Contrast Adjustment Menu. Use the arrow keys to adjust the display contrast to the desired level and then use the CONTRAST DONE option to return home. 2.4.2 Locking and Unlocking Configurations Use the LOCK CFG or UNLOCK CFG option of the Configuration Lock Menu to lock or unlock the display configuration. When the LOCK CFG option is chosen the menu display returns home and the CONFIG option on th
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2.4.4 Setting AutoShut-off Parameters The calibrator can be set to automatically shut-off after a selected number of minutes; this function can also be disabled. To set the auto shut off parameters select the AUTO OFF option on the Auto Shut Off Main Menu. Use the arrow keys to select the number of minutes before the calibrator turns off or disable auto shut-off by scrolling all the way down. Use the AUTO OFF DONE option to set the parameters and return home. The auto shut off time is reset
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configurations of the other currently active displays, if the configurations are in conflict the recalled display’s configuration is modified to avoid the conflict. If all three displays are deactivated the LOWER display will come on automatically 3. Measuring Pressure To measure pressure, connect the calibrator using an appropriate fitting. Choose a pressure setting for the display being used. The calibrator is equipped with one internal sensor and many optional external Pressure Modules are
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including gauge, vacuum, differential and absolute. The modules work seamlessly with the calibrator. Simply plug them into the interface and select [EXT] (external sensor). Since the interface between the calibrator and the module is digital all the accuracy and display resolution is derived from the module. Figure 6 4. Measuring Current To measure current use the input terminals in the front of the calibrator. Select the mA function on one of the displays. Current is measured in mA and per
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Figure 7 5. Measuring Voltage To measure voltage use the input terminals in the front of the calibrator. Select the Volts function on one of the displays. The calibrator can measure up to 30V. Figure 8 14
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6. Performing a Pressure Switch Test Pressure switch under test Figure 10 To perform a switch test, follow these steps: 1. Change the setup to Setup 4 (default switch test). Setup 4: The upper display is set to [P1] ST, all other displays are off. Important NOTE: The pressure Switch Test can be performed with the following functions[P1] ST, or EXT ST. 2. Connect the calibrator to the switch using the pressure switch terminals. The polarity of the terminals does not matter. Then connect the p
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5. Apply pressure with the pump slowly until the switch opens. Important NOTE: In the switch test mode the display update rate is increased to help capture changing pressure inputs. Even with this enhanced sample rate pressurizing the device under test should be done slowly to ensure accurate readings. 6. Once the switch is open, “OPEN” will be displayed, bleed the pump slowly until the pressure switch closes. 7. At the top of the display it will now read, “SW OPENED AT” and give you the pre
